Related Experiment Video
Updated: May 22, 2026

07:30
Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
Published on: March 7, 2018
A Fresnel zone plate biosensor for signal amplification with enhanced signal-to-noise ratio
Yong-Cheol Jeong1, Bokyung Jung, Jung-Hwan Park
1Department of Chemical and Biomolecular Engineering, KAIST, 373-1, Daejeon, 305-701, Republic of Korea. ycjeong@kaist.ac.kr.
Abstract:
We describe a signal amplified biosensor based on self-assembled optical diffraction grating of a Fresnel zone plate structure. Diffracted light rays passed through gratings are interfered constructively at the focal point, resulting in the enhanced signal amplification without sacrificing signal-to-noise ratio (SNR).

